1/*	$NetBSD: wizard.c,v 1.17 2021/05/02 12:50:43 rillig Exp $	*/
2
3/*-
4 * Copyright (c) 1991, 1993
5 *	The Regents of the University of California.  All rights reserved.
6 *
7 * The game adventure was originally written in Fortran by Will Crowther
8 * and Don Woods.  It was later translated to C and enhanced by Jim
9 * Gillogly.  This code is derived from software contributed to Berkeley
10 * by Jim Gillogly at The Rand Corporation.
11 *
12 * Redistribution and use in source and binary forms, with or without
13 * modification, are permitted provided that the following conditions
14 * are met:
15 * 1. Redistributions of source code must retain the above copyright
16 *    notice, this list of conditions and the following disclaimer.
17 * 2. Redistributions in binary form must reproduce the above copyright
18 *    notice, this list of conditions and the following disclaimer in the
19 *    documentation and/or other materials provided with the distribution.
20 * 3. Neither the name of the University nor the names of its contributors
21 *    may be used to endorse or promote products derived from this software
22 *    without specific prior written permission.
23 *
24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34 * SUCH DAMAGE.
35 */
36
37#include <sys/cdefs.h>
38#ifndef lint
39#if 0
40static char sccsid[] = "@(#)wizard.c	8.1 (Berkeley) 6/2/93";
41#else
42__RCSID("$NetBSD: wizard.c,v 1.17 2021/05/02 12:50:43 rillig Exp $");
43#endif
44#endif				/* not lint */
45
46/*      Re-coding of advent in C: privileged operations                 */
47
48#include <stdio.h>
49#include <string.h>
50#include <stdlib.h>
51#include <time.h>
52#include "hdr.h"
53#include "extern.h"
54
55static int wizard(void);
56
57void
58datime(int *d, int *t)
59{
60	time_t  tvec;
61	struct tm *tptr;
62
63	time(&tvec);
64	tptr = localtime(&tvec);
65	/* day since 1977  (mod leap)   */
66	*d = (tptr->tm_yday + 365 * (tptr->tm_year - 77)
67             + (tptr->tm_year - 77) / 4 - (tptr->tm_year - 1) / 100
68             + (tptr->tm_year + 299) / 400);
69	/* bug: this will overflow in the year 2066 AD (with 16 bit int) */
70	/* it will be attributed to Wm the C's millenial celebration    */
71	/* and minutes since midnite */
72	*t = tptr->tm_hour * 60 + tptr->tm_min;
73}				/* pretty painless              */
74
75
76static char magic[6];
77
78void
79poof(void)
80{
81	strcpy(magic, DECR('d', 'w', 'a', 'r', 'f'));
82	latency = 45;
83}
84
85int
86Start(void)
87{
88	int     d, t, delay;
89
90	datime(&d, &t);
91	delay = (d - saveday) * 1440 + (t - savet);	/* good for about a
92							 * month     */
93
94	if (delay >= latency) {
95		saved = -1;
96		return (FALSE);
97	}
98	printf("This adventure was suspended a mere %d minute%s ago.",
99	    delay, delay == 1 ? "" : "s");
100	if (delay <= latency / 3) {
101		mspeak(2);
102		exit(0);
103	}
104	mspeak(8);
105	if (!wizard()) {
106		mspeak(9);
107		exit(0);
108	}
109	saved = -1;
110	return (FALSE);
111}
112
113/* not as complex as advent/10 (for now)        */
114static int
115wizard(void)
116{
117	char   *word, *x;
118	if (!yesm(16, 0, 7))
119		return (FALSE);
120	mspeak(17);
121	getin(&word, &x);
122	if (!weq(word, magic)) {
123		mspeak(20);
124		return (FALSE);
125	}
126	mspeak(19);
127	return (TRUE);
128}
129
130void
131ciao(void)
132{
133	char fname[80];
134	size_t pos;
135
136	printf("What would you like to call the saved version?\n");
137	/* XXX - should use fgetln to avoid arbitrary limit */
138	for (pos = 0; pos < sizeof(fname) - 1; pos++) {
139		int ch;
140		ch = getchar();
141		if (ch == '\n' || ch == EOF)
142			break;
143		fname[pos] = ch;
144	}
145	fname[pos] = '\0';
146	if (save(fname) != 0)
147		return;		/* Save failed */
148	printf("To resume, say \"adventure %s\".\n", fname);
149	printf("\"With these rooms I might now have been familiarly ");
150	printf("acquainted.\"\n");
151	exit(0);
152}
153
154
155int
156ran(int range)
157{
158	long    i;
159
160	i = rand() % range;
161	return (i);
162}
163